ssl/ssltest.c

   1 /* ssl/ssltest.c */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58
  59 #include <stdio.h>
  60 #include <stdlib.h>
  61 #include <string.h>
  62 #include <errno.h>
  63
  64 #include "openssl/e_os.h"
  65
  66 #include <openssl/bio.h>
  67 #include <openssl/crypto.h>
  68 #include <openssl/x509.h>
  69 #include <openssl/ssl.h>
  70 #include <openssl/err.h>
  71 #ifdef WINDOWS
  72 #include "../crypto/bio/bss_file.c"
  73 #endif
  74
  75 #if defined(NO_RSA) && !defined(NO_SSL2)
  76 #define NO_SSL2
  77 #endif
  78
  79 #ifdef VMS
  80 #  define TEST_SERVER_CERT "SYS$DISK:[-.APPS]SERVER.PEM"
  81 #  define TEST_CLIENT_CERT "SYS$DISK:[-.APPS]CLIENT.PEM"
  82 #else
  83 #  define TEST_SERVER_CERT "../apps/server.pem"
  84 #  define TEST_CLIENT_CERT "../apps/client.pem"
  85 #endif
  86
  87 int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx);
  88 #ifndef NO_RSA
  89 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export,int keylength);
  90 #endif
  91 #ifndef NO_DH
  92 static DH *get_dh512(void);
  93 #endif
  94 BIO *bio_err=NULL;
  95 BIO *bio_stdout=NULL;
  96
  97 static char *cipher=NULL;
  98 int verbose=0;
  99 int debug=0;
 100 #ifdef FIONBIO
 101 static int s_nbio=0;
 102 #endif
 103
 104
 105 int doit(SSL *s_ssl,SSL *c_ssl,long bytes);
 106 static void sv_usage(void)
 107         {
 108         fprintf(stderr,"usage: ssltest [args ...]\n");
 109         fprintf(stderr,"\n");
 110         fprintf(stderr," -server_auth  - check server certificate\n");
 111         fprintf(stderr," -client_auth  - do client authentication\n");
 112         fprintf(stderr," -v            - more output\n");
 113         fprintf(stderr," -d            - debug output\n");
 114         fprintf(stderr," -reuse        - use session-id reuse\n");
 115         fprintf(stderr," -num <val>    - number of connections to perform\n");
 116         fprintf(stderr," -bytes <val>  - number of bytes to swap between client/server\n");
 117 #ifndef NO_SSL2
 118         fprintf(stderr," -ssl2         - use SSLv2\n");
 119 #endif
 120 #ifndef NO_SSL3
 121         fprintf(stderr," -ssl3         - use SSLv3\n");
 122 #endif
 123 #ifndef NO_TLS1
 124         fprintf(stderr," -tls1         - use TLSv1\n");
 125 #endif
 126         fprintf(stderr," -CApath arg   - PEM format directory of CA's\n");
 127         fprintf(stderr," -CAfile arg   - PEM format file of CA's\n");
 128         fprintf(stderr," -cert arg     - Certificate file\n");
 129         fprintf(stderr," -s_cert arg   - Just the server certificate file\n");
 130         fprintf(stderr," -c_cert arg   - Just the client certificate file\n");
 131         fprintf(stderr," -cipher arg   - The cipher list\n");
 132         }
 133
 134 int main(int argc, char *argv[])
 135         {
 136         char *CApath=NULL,*CAfile=NULL;
 137         int badop=0;
 138         int tls1=0,ssl2=0,ssl3=0,ret=1;
 139         int client_auth=0;
 140         int server_auth=0,i;
 141         char *server_cert=TEST_SERVER_CERT;
 142         char *client_cert=TEST_CLIENT_CERT;
 143         SSL_CTX *s_ctx=NULL;
 144         SSL_CTX *c_ctx=NULL;
 145         SSL_METHOD *meth=NULL;
 146         SSL *c_ssl,*s_ssl;
 147         int number=1,reuse=0;
 148         long bytes=1L;
 149         SSL_CIPHER *ciph;
 150 #ifndef NO_DH
 151         DH *dh;
 152 #endif
 153
 154         bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 155         bio_stdout=BIO_new_fp(stdout,BIO_NOCLOSE);
 156
 157         CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
 158
 159         argc--;
 160         argv++;
 161
 162         while (argc >= 1)
 163                 {
 164                 if      (strcmp(*argv,"-server_auth") == 0)
 165                         server_auth=1;
 166                 else if (strcmp(*argv,"-client_auth") == 0)
 167                         client_auth=1;
 168                 else if (strcmp(*argv,"-v") == 0)
 169                         verbose=1;
 170                 else if (strcmp(*argv,"-d") == 0)
 171                         debug=1;
 172                 else if (strcmp(*argv,"-reuse") == 0)
 173                         reuse=1;
 174                 else if (strcmp(*argv,"-ssl2") == 0)
 175                         ssl2=1;
 176                 else if (strcmp(*argv,"-tls1") == 0)
 177                         tls1=1;
 178                 else if (strcmp(*argv,"-ssl3") == 0)
 179                         ssl3=1;
 180                 else if (strncmp(*argv,"-num",4) == 0)
 181                         {
 182                         if (--argc < 1) goto bad;
 183                         number= atoi(*(++argv));
 184                         if (number == 0) number=1;
 185                         }
 186                 else if (strcmp(*argv,"-bytes") == 0)
 187                         {
 188                         if (--argc < 1) goto bad;
 189                         bytes= atol(*(++argv));
 190                         if (bytes == 0L) bytes=1L;
 191                         i=strlen(argv[0]);
 192                         if (argv[0][i-1] == 'k') bytes*=1024L;
 193                         if (argv[0][i-1] == 'm') bytes*=1024L*1024L;
 194                         }
 195                 else if (strcmp(*argv,"-cert") == 0)
 196                         {
 197                         if (--argc < 1) goto bad;
 198                         server_cert= *(++argv);
 199                         }
 200                 else if (strcmp(*argv,"-s_cert") == 0)
 201                         {
 202                         if (--argc < 1) goto bad;
 203                         server_cert= *(++argv);
 204                         }
 205                 else if (strcmp(*argv,"-c_cert") == 0)
 206                         {
 207                         if (--argc < 1) goto bad;
 208                         client_cert= *(++argv);
 209                         }
 210                 else if (strcmp(*argv,"-cipher") == 0)
 211                         {
 212                         if (--argc < 1) goto bad;
 213                         cipher= *(++argv);
 214                         }
 215                 else if (strcmp(*argv,"-CApath") == 0)
 216                         {
 217                         if (--argc < 1) goto bad;
 218                         CApath= *(++argv);
 219                         }
 220                 else if (strcmp(*argv,"-CAfile") == 0)
 221                         {
 222                         if (--argc < 1) goto bad;
 223                         CAfile= *(++argv);
 224                         }
 225                 else
 226                         {
 227                         fprintf(stderr,"unknown option %s\n",*argv);
 228                         badop=1;
 229                         break;
 230                         }
 231                 argc--;
 232                 argv++;
 233                 }
 234         if (badop)
 235                 {
 236 bad:
 237                 sv_usage();
 238                 goto end;
 239                 }
 240
 241 /*      if (cipher == NULL) cipher=getenv("SSL_CIPHER"); */
 242
 243         SSL_library_init();
 244         SSL_load_error_strings();
 245
 246 #if !defined(NO_SSL2) && !defined(NO_SSL3)
 247         if (ssl2)
 248                 meth=SSLv2_method();
 249         else
 250         if (tls1)
 251                 meth=TLSv1_method();
 252         else
 253         if (ssl3)
 254                 meth=SSLv3_method();
 255         else
 256                 meth=SSLv23_method();
 257 #else
 258 #ifdef NO_SSL2
 259         meth=SSLv3_method();
 260 #else
 261         meth=SSLv2_method();
 262 #endif
 263 #endif
 264
 265         c_ctx=SSL_CTX_new(meth);
 266         s_ctx=SSL_CTX_new(meth);
 267         if ((c_ctx == NULL) || (s_ctx == NULL))
 268                 {
 269                 ERR_print_errors(bio_err);
 270                 goto end;
 271                 }
 272
 273         if (cipher != NULL)
 274                 {
 275                 SSL_CTX_set_cipher_list(c_ctx,cipher);
 276                 SSL_CTX_set_cipher_list(s_ctx,cipher);
 277                 }
 278
 279 #ifndef NO_DH
 280         dh=get_dh512();
 281         SSL_CTX_set_tmp_dh(s_ctx,dh);
 282         DH_free(dh);
 283 #endif
 284
 285 #ifndef NO_RSA
 286         SSL_CTX_set_tmp_rsa_callback(s_ctx,tmp_rsa_cb);
 287 #endif
 288
 289         if (!SSL_CTX_use_certificate_file(s_ctx,server_cert,SSL_FILETYPE_PEM))
 290                 {
 291                 ERR_print_errors(bio_err);
 292                 }
 293         else if (!SSL_CTX_use_PrivateKey_file(s_ctx,server_cert,
 294                 SSL_FILETYPE_PEM))
 295                 {
 296                 ERR_print_errors(bio_err);
 297                 goto end;
 298                 }
 299
 300         if (client_auth)
 301                 {
 302                 SSL_CTX_use_certificate_file(c_ctx,client_cert,
 303                         SSL_FILETYPE_PEM);
 304                 SSL_CTX_use_PrivateKey_file(c_ctx,client_cert,
 305                         SSL_FILETYPE_PEM);
 306                 }
 307
 308         if (    (!SSL_CTX_load_verify_locations(s_ctx,CAfile,CApath)) ||
 309                 (!SSL_CTX_set_default_verify_paths(s_ctx)) ||
 310                 (!SSL_CTX_load_verify_locations(c_ctx,CAfile,CApath)) ||
 311                 (!SSL_CTX_set_default_verify_paths(c_ctx)))
 312                 {
 313                 /* fprintf(stderr,"SSL_load_verify_locations\n"); */
 314                 ERR_print_errors(bio_err);
 315                 /* goto end; */
 316                 }
 317
 318         if (client_auth)
 319                 {
 320                 fprintf(stderr,"client authentication\n");
 321                 SSL_CTX_set_verify(s_ctx,
 322                         SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
 323                         verify_callback);
 324                 }
 325         if (server_auth)
 326                 {
 327                 fprintf(stderr,"server authentication\n");
 328                 SSL_CTX_set_verify(c_ctx,SSL_VERIFY_PEER,
 329                         verify_callback);
 330                 }
 331
 332         c_ssl=SSL_new(c_ctx);
 333         s_ssl=SSL_new(s_ctx);
 334
 335         for (i=0; i<number; i++)
 336                 {
 337                 if (!reuse) SSL_set_session(c_ssl,NULL);
 338                 ret=doit(s_ssl,c_ssl,bytes);
 339                 }
 340
 341         if (!verbose)
 342                 {
 343                 ciph=SSL_get_current_cipher(c_ssl);
 344                 fprintf(stdout,"Protocol %s, cipher %s, %s\n",
 345                         SSL_get_version(c_ssl),
 346                         SSL_CIPHER_get_version(ciph),
 347                         SSL_CIPHER_get_name(ciph));
 348                 }
 349         if ((number > 1) || (bytes > 1L))
 350                 printf("%d handshakes of %ld bytes done\n",number,bytes);
 351
 352         SSL_free(s_ssl);
 353         SSL_free(c_ssl);
 354
 355 end:
 356         if (s_ctx != NULL) SSL_CTX_free(s_ctx);
 357         if (c_ctx != NULL) SSL_CTX_free(c_ctx);
 358
 359         if (bio_stdout != NULL) BIO_free(bio_stdout);
 360
 361         ERR_free_strings();
 362         ERR_remove_state(0);
 363         EVP_cleanup();
 364         CRYPTO_mem_leaks(bio_err);
 365         EXIT(ret);
 366         }
 367
 368 #define W_READ  1
 369 #define W_WRITE 2
 370 #define C_DONE  1
 371 #define S_DONE  2
 372
 373 int doit(SSL *s_ssl, SSL *c_ssl, long count)
 374         {
 375         MS_STATIC char cbuf[1024*8],sbuf[1024*8];
 376         long cw_num=count,cr_num=count;
 377         long sw_num=count,sr_num=count;
 378         int ret=1;
 379         BIO *c_to_s=NULL;
 380         BIO *s_to_c=NULL;
 381         BIO *c_bio=NULL;
 382         BIO *s_bio=NULL;
 383         int c_r,c_w,s_r,s_w;
 384         int c_want,s_want;
 385         int i,j;
 386         int done=0;
 387         int c_write,s_write;
 388         int do_server=0,do_client=0;
 389         SSL_CIPHER *ciph;
 390
 391         c_to_s=BIO_new(BIO_s_mem());
 392         s_to_c=BIO_new(BIO_s_mem());
 393         if ((s_to_c == NULL) || (c_to_s == NULL))
 394                 {
 395                 ERR_print_errors(bio_err);
 396                 goto err;
 397                 }
 398
 399         c_bio=BIO_new(BIO_f_ssl());
 400         s_bio=BIO_new(BIO_f_ssl());
 401         if ((c_bio == NULL) || (s_bio == NULL))
 402                 {
 403                 ERR_print_errors(bio_err);
 404                 goto err;
 405                 }
 406
 407         SSL_set_connect_state(c_ssl);
 408         SSL_set_bio(c_ssl,s_to_c,c_to_s);
 409         BIO_set_ssl(c_bio,c_ssl,BIO_NOCLOSE);
 410
 411         SSL_set_accept_state(s_ssl);
 412         SSL_set_bio(s_ssl,c_to_s,s_to_c);
 413         BIO_set_ssl(s_bio,s_ssl,BIO_NOCLOSE);
 414
 415         c_r=0; s_r=1;
 416         c_w=1; s_w=0;
 417         c_want=W_WRITE;
 418         s_want=0;
 419         c_write=1,s_write=0;
 420
 421         /* We can always do writes */
 422         for (;;)
 423                 {
 424                 do_server=0;
 425                 do_client=0;
 426
 427                 i=(int)BIO_pending(s_bio);
 428                 if ((i && s_r) || s_w) do_server=1;
 429
 430                 i=(int)BIO_pending(c_bio);
 431                 if ((i && c_r) || c_w) do_client=1;
 432
 433                 if (do_server && debug)
 434                         {
 435                         if (SSL_in_init(s_ssl))
 436                                 printf("server waiting in SSL_accept - %s\n",
 437                                         SSL_state_string_long(s_ssl));
 438 /*                      else if (s_write)
 439                                 printf("server:SSL_write()\n");
 440                         else
 441                                 printf("server:SSL_read()\n"); */
 442                         }
 443
 444                 if (do_client && debug)
 445                         {
 446                         if (SSL_in_init(c_ssl))
 447                                 printf("client waiting in SSL_connect - %s\n",
 448                                         SSL_state_string_long(c_ssl));
 449 /*                      else if (c_write)
 450                                 printf("client:SSL_write()\n");
 451                         else
 452                                 printf("client:SSL_read()\n"); */
 453                         }
 454
 455                 if (!do_client && !do_server)
 456                         {
 457                         fprintf(stdout,"ERROR IN STARTUP\n");
 458                         ERR_print_errors(bio_err);
 459                         break;
 460                         }
 461                 if (do_client && !(done & C_DONE))
 462                         {
 463                         if (c_write)
 464                                 {
 465                                 j=(cw_num > (long)sizeof(cbuf))
 466                                         ?sizeof(cbuf):(int)cw_num;
 467                                 i=BIO_write(c_bio,cbuf,j);
 468                                 if (i < 0)
 469                                         {
 470                                         c_r=0;
 471                                         c_w=0;
 472                                         if (BIO_should_retry(c_bio))
 473                                                 {
 474                                                 if (BIO_should_read(c_bio))
 475                                                         c_r=1;
 476                                                 if (BIO_should_write(c_bio))
 477                                                         c_w=1;
 478                                                 }
 479                                         else
 480                                                 {
 481                                                 fprintf(stderr,"ERROR in CLIENT\n");
 482                                                 ERR_print_errors(bio_err);
 483                                                 goto err;
 484                                                 }
 485                                         }
 486                                 else if (i == 0)
 487                                         {
 488                                         fprintf(stderr,"SSL CLIENT STARTUP FAILED\n");
 489                                         goto err;
 490                                         }
 491                                 else
 492                                         {
 493                                         if (debug)
 494                                                 printf("client wrote %d\n",i);
 495                                         /* ok */
 496                                         s_r=1;
 497                                         c_write=0;
 498                                         cw_num-=i;
 499                                         }
 500                                 }
 501                         else
 502                                 {
 503                                 i=BIO_read(c_bio,cbuf,sizeof(cbuf));
 504                                 if (i < 0)
 505                                         {
 506                                         c_r=0;
 507                                         c_w=0;
 508                                         if (BIO_should_retry(c_bio))
 509                                                 {
 510                                                 if (BIO_should_read(c_bio))
 511                                                         c_r=1;
 512                                                 if (BIO_should_write(c_bio))
 513                                                         c_w=1;
 514                                                 }
 515                                         else
 516                                                 {
 517                                                 fprintf(stderr,"ERROR in CLIENT\n");
 518                                                 ERR_print_errors(bio_err);
 519                                                 goto err;
 520                                                 }
 521                                         }
 522                                 else if (i == 0)
 523                                         {
 524                                         fprintf(stderr,"SSL CLIENT STARTUP FAILED\n");
 525                                         goto err;
 526                                         }
 527                                 else
 528                                         {
 529                                         if (debug)
 530                                                 printf("client read %d\n",i);
 531                                         cr_num-=i;
 532                                         if (sw_num > 0)
 533                                                 {
 534                                                 s_write=1;
 535                                                 s_w=1;
 536                                                 }
 537                                         if (cr_num <= 0)
 538                                                 {
 539                                                 s_write=1;
 540                                                 s_w=1;
 541                                                 done=S_DONE|C_DONE;
 542                                                 }
 543                                         }
 544                                 }
 545                         }
 546
 547                 if (do_server && !(done & S_DONE))
 548                         {
 549                         if (!s_write)
 550                                 {
 551                                 i=BIO_read(s_bio,sbuf,sizeof(cbuf));
 552                                 if (i < 0)
 553                                         {
 554                                         s_r=0;
 555                                         s_w=0;
 556                                         if (BIO_should_retry(s_bio))
 557                                                 {
 558                                                 if (BIO_should_read(s_bio))
 559                                                         s_r=1;
 560                                                 if (BIO_should_write(s_bio))
 561                                                         s_w=1;
 562                                                 }
 563                                         else
 564                                                 {
 565                                                 fprintf(stderr,"ERROR in SERVER\n");
 566                                                 ERR_print_errors(bio_err);
 567                                                 goto err;
 568                                                 }
 569                                         }
 570                                 else if (i == 0)
 571                                         {
 572                                         ERR_print_errors(bio_err);
 573                                         fprintf(stderr,"SSL SERVER STARTUP FAILED in SSL_read\n");
 574                                         goto err;
 575                                         }
 576                                 else
 577                                         {
 578                                         if (debug)
 579                                                 printf("server read %d\n",i);
 580                                         sr_num-=i;
 581                                         if (cw_num > 0)
 582                                                 {
 583                                                 c_write=1;
 584                                                 c_w=1;
 585                                                 }
 586                                         if (sr_num <= 0)
 587                                                 {
 588                                                 s_write=1;
 589                                                 s_w=1;
 590                                                 c_write=0;
 591                                                 }
 592                                         }
 593                                 }
 594                         else
 595                                 {
 596                                 j=(sw_num > (long)sizeof(sbuf))?
 597                                         sizeof(sbuf):(int)sw_num;
 598                                 i=BIO_write(s_bio,sbuf,j);
 599                                 if (i < 0)
 600                                         {
 601                                         s_r=0;
 602                                         s_w=0;
 603                                         if (BIO_should_retry(s_bio))
 604                                                 {
 605                                                 if (BIO_should_read(s_bio))
 606                                                         s_r=1;
 607                                                 if (BIO_should_write(s_bio))
 608                                                         s_w=1;
 609                                                 }
 610                                         else
 611                                                 {
 612                                                 fprintf(stderr,"ERROR in SERVER\n");
 613                                                 ERR_print_errors(bio_err);
 614                                                 goto err;
 615                                                 }
 616                                         }
 617                                 else if (i == 0)
 618                                         {
 619                                         ERR_print_errors(bio_err);
 620                                         fprintf(stderr,"SSL SERVER STARTUP FAILED in SSL_write\n");
 621                                         goto err;
 622                                         }
 623                                 else
 624                                         {
 625                                         if (debug)
 626                                                 printf("server wrote %d\n",i);
 627                                         sw_num-=i;
 628                                         s_write=0;
 629                                         c_r=1;
 630                                         if (sw_num <= 0)
 631                                                 done|=S_DONE;
 632                                         }
 633                                 }
 634                         }
 635
 636                 if ((done & S_DONE) && (done & C_DONE)) break;
 637                 }
 638
 639         ciph=SSL_get_current_cipher(c_ssl);
 640         if (verbose)
 641                 fprintf(stdout,"DONE, protocol %s, cipher %s, %s\n",
 642                         SSL_get_version(c_ssl),
 643                         SSL_CIPHER_get_version(ciph),
 644                         SSL_CIPHER_get_name(ciph));
 645         ret=0;
 646 err:
 647         /* We have to set the BIO's to NULL otherwise they will be
 648          * Free()ed twice.  Once when th s_ssl is SSL_free()ed and
 649          * again when c_ssl is SSL_free()ed.
 650          * This is a hack required because s_ssl and c_ssl are sharing the same
 651          * BIO structure and SSL_set_bio() and SSL_free() automatically
 652          * BIO_free non NULL entries.
 653          * You should not normally do this or be required to do this */
 654         if (s_ssl != NULL)
 655                 {
 656                 s_ssl->rbio=NULL;
 657                 s_ssl->wbio=NULL;
 658                 }
 659         if (c_ssl != NULL)
 660                 {
 661                 c_ssl->rbio=NULL;
 662                 c_ssl->wbio=NULL;
 663                 }
 664
 665         if (c_to_s != NULL) BIO_free(c_to_s);
 666         if (s_to_c != NULL) BIO_free(s_to_c);
 667         if (c_bio != NULL) BIO_free_all(c_bio);
 668         if (s_bio != NULL) BIO_free_all(s_bio);
 669         return(ret);
 670         }
 671
 672 int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx)
 673         {
 674         char *s,buf[256];
 675
 676         s=X509_NAME_oneline(X509_get_subject_name(ctx->current_cert),buf,256);
 677         if (s != NULL)
 678                 {
 679                 if (ok)
 680                         fprintf(stderr,"depth=%d %s\n",ctx->error_depth,buf);
 681                 else
 682                         fprintf(stderr,"depth=%d error=%d %s\n",
 683                                 ctx->error_depth,ctx->error,buf);
 684                 }
 685
 686         if (ok == 0)
 687                 {
 688                 switch (ctx->error)
 689                         {
 690                 case X509_V_ERR_CERT_NOT_YET_VALID:
 691                 case X509_V_ERR_CERT_HAS_EXPIRED:
 692                 case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
 693                         ok=1;
 694                         }
 695                 }
 696
 697         return(ok);
 698         }
 699
 700 #ifndef NO_DH
 701 static unsigned char dh512_p[]={
 702         0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
 703         0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
 704         0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
 705         0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
 706         0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
 707         0x47,0x74,0xE8,0x33,
 708         };
 709 static unsigned char dh512_g[]={
 710         0x02,
 711         };
 712
 713 static DH *get_dh512(void)
 714         {
 715         DH *dh=NULL;
 716
 717         if ((dh=DH_new()) == NULL) return(NULL);
 718         dh->p=BN_bin2bn(dh512_p,sizeof(dh512_p),NULL);
 719         dh->g=BN_bin2bn(dh512_g,sizeof(dh512_g),NULL);
 720         if ((dh->p == NULL) || (dh->g == NULL))
 721                 return(NULL);
 722         return(dh);
 723         }
 724 #endif
 725
 726 #ifndef NO_RSA
 727 static RSA MS_CALLBACK *tmp_rsa_cb(SSL *s, int is_export, int keylength)
 728         {
 729         static RSA *rsa_tmp=NULL;
 730
 731         if (rsa_tmp == NULL)
 732                 {
 733                 BIO_printf(bio_err,"Generating temp (%d bit) RSA key...",keylength);
 734                 BIO_flush(bio_err);
 735                 rsa_tmp=RSA_generate_key(keylength,RSA_F4,NULL,NULL);
 736                 BIO_printf(bio_err,"\n");
 737                 BIO_flush(bio_err);
 738                 }
 739         return(rsa_tmp);
 740         }
 741 #endif